fluke

1 of 3

noun (1)

ˈflük 

1

: a stroke of luck

The discovery was a fluke.

Her second championship shows that the first one was no mere fluke.

2

: an accidentally successful stroke at billiards or pool

fluke

2 of 3

noun (2)

1

: flatfish

2

: a flattened digenetic trematode worm

broadly : trematode compare liver fluke

fluke

3 of 3

noun (3)

1

: the part of an anchor that fastens in the ground see anchor illustration

2

: one of the lobes of a whale's tail

Synonyms of fluke

Noun (1)

• accident
• chance
• luck

Examples of fluke in a Sentence

Noun (1)

the discovery of oil on their property was just an amazing fluke

Recent Examples on the Web

Noun

But their unbeaten run has been no fluke either, shaped by the clear tactical identity head coach Sergej Jakirovic established in the Championship last season, one which has scaled up well to their new surroundings. — Conor O'Neill, New York Times, 14 Sep. 2026

Was 2025 the fluke of flukes or a harbinger of something worse to come for Andy Reid and friends? — Pete Grathoff, Kansas City Star, 14 Sep. 2026

The Chiefs, meanwhile, will be out to prove last season's 6-11 finish that ended a 10-season postseason streak was a fluke. — Jace Evans, USA Today, 10 Sep. 2026

The food menu complements the martini focus, with easy raw bar pairings like caviar service, coconut fluke ceviche and tuna tartare served with avocado mousse and wasabi. — Kristen Tauer, Footwear News, 8 Sep. 2026

Word History

Etymology

Noun (1)

origin unknown

Noun (2)

Middle English floke, fluke, from Old English flōc; akin to Old English flōh chip, Old High German flah smooth, Greek plax flat surface, and probably to Old English flōr floor — more at floor

Noun (3)

perhaps from fluke entry 2

First Known Use

Noun (1)

1857, in the meaning defined at sense 2

Noun (2)

before the 12th century, in the meaning defined at sense 1

Noun (3)

1561, in the meaning defined at sense 1

Phrases Containing fluke

• blood fluke
• liver fluke

Rhymes for fluke

• juke
• kook
• luc
• luke
• nuke
• puke
• souk
• spook
• archduke
• rebuke
• caoutchouc

Kids Definition

fluke

1 of 3 noun

ˈflük 

: any of various trematode flatworms compare liver fluke

fluke

2 of 3 noun

1

: the part of an anchor that digs into the ground

2

: a barbed head (as of a harpoon)

3

: one of the lobes of a whale's tail

fluke

3 of 3 noun

: a stroke of good luck

won by a fluke

fluky

ˈflü-kē

adjective

Medical Definition

fluke

noun

ˈflük 

: a flattened digenetic trematode worm

broadly : trematode see liver fluke